Wikipedia:Reference desk/Archives/Mathematics/September 2008

= September 1 = Reference_desk/Archives/Mathematics/2008 September 1


 * 1) Distance along sine curve
 * 2) Perfect square trinomial
 * 3) 10 marbles
 * 4) bernoulli trials with unique p

= September 2 = Reference_desk/Archives/Mathematics/2008 September 2


 * 1) exponential increase

= September 3 = Reference_desk/Archives/Mathematics/2008 September 3


 * 1) hilbart space
 * 2) for a proof
 * 3) Complicated Maths Question
 * 4) A bit of a strange question...
 * 5) Peanut shaped

= September 4 = Reference_desk/Archives/Mathematics/2008 September 4


 * 1) Plot request
 * 2) Calculator for student in college

= September 5 = Reference_desk/Archives/Mathematics/2008 September 5


 * 1) How many different song variations are there?
 * 2) Differential equation

= September 6 = Reference_desk/Archives/Mathematics/2008 September 6


 * 1) heights and distance
 * 2) Surds

= September 7 = Reference_desk/Archives/Mathematics/2008 September 7


 * 1) solenoidal and irrotational field
 * 2) Calculus of variations spring problem
 * 3) Help

= September 8 = Reference_desk/Archives/Mathematics/2008 September 8


 * 1) The Hawthorne Effect and "improvements due to monitoring" of performance
 * 2) Differentiation
 * 3) mathematical representation of geography
 * 4) questions about polynomials

= September 9 = Reference_desk/Archives/Mathematics/2008 September 9


 * 1) Acceleration dependent on position
 * 2) About statistics
 * 3) Index numbers
 * 4) statistics

= September 10 = Reference_desk/Archives/Mathematics/2008 September 10


 * 1) Query regarding divisibilty
 * 2) What are the rules of treating differentials?
 * 3) mathematician name for famous subset of whole #'s 1,2,3,5,8,13,21   ?

= September 11 = Reference_desk/Archives/Mathematics/2008 September 11


 * 1) Origin Of The Concept Of Zero?
 * 2) [[Wikipedia:Reference_desk/Archives/Mathematics/2008 September 11#Followup to .5Bhttp:.2F.2Fen.wikipedia.org.2Fwiki.2FWikipedia:Reference_desk.2FArchives.2FMathematics.2F2008_August_1.23Statistics an earlier question.5D|Followup to an earlier question]]

= September 12 = Reference_desk/Archives/Mathematics/2008 September 12


 * 1) how to predict the next number with 4 digits
 * 2) What did they use before graphing calculators?

= September 13 = Reference_desk/Archives/Mathematics/2008 September 13


 * 1) Calculus Question
 * 2) What are the chances

= September 14 = Reference_desk/Archives/Mathematics/2008 September 14


 * 1) Validity of proof
 * 2) Would like a math expert to look over my experimentation with a simple physics equation
 * 3) numerical analysis
 * 4) Is impulse related to work?
 * 5) earliest date of use or description

= September 15 = Reference_desk/Archives/Mathematics/2008 September 15


 * 1) having problems with conversion of measurements
 * 2) Annual Percentage Rate
 * 3) combinatorics question
 * 4) Population and area question
 * 5) Word Problem- how to setting up the equations
 * 6) Combinations
 * 7) ms^-3
 * 8) Gauss and triangular numbers

= September 16 = Reference_desk/Archives/Mathematics/2008 September 16


 * 1) Constructible numbers
 * 2) Baffling Proportions Problem

= September 17 = Reference_desk/Archives/Mathematics/2008 September 17


 * 1) Functions
 * 2) differential equation
 * 3) combinations and permutaions

= September 18 = Reference_desk/Archives/Mathematics/2008 September 18


 * 1) Formula for planet temperature
 * 2) Finding an average flood height overtime
 * 3) Word for the "terms" in a union
 * 4) 0 dimensional object in 4 dimensional world
 * 5) Elliptic Curves Isomorphism
 * 6) Is there any limitation to defining all x in Q as...
 * 7) Algebra

= September 19 = Reference_desk/Archives/Mathematics/2008 September 19


 * 1) probability

= September 20 = Reference_desk/Archives/Mathematics/2008 September 20


 * 1) Planes and Spheres
 * 2) Radius vs. radian
 * 3) Integration
 * 4) functions
 * 5) Algebra

= September 21 = Reference_desk/Archives/Mathematics/2008 September 21


 * 1) Puzzle
 * 2) Elliptic curves with isomorphic group structure that are not isomorphic

= September 22 = Reference_desk/Archives/Mathematics/2008 September 22


 * 1) Dedekind cuts
 * 2) Find the natural domain and correspong range of this function...
 * 3) Rearranging equations
 * 4) Mean of circular quantities

= September 23 = Reference_desk/Archives/Mathematics/2008 September 23


 * 1) Calculating risk for insurance
 * 2) Rows and columns
 * 3) Seeking lightweight modal logic book
 * 4) inverse function
 * 5) Logarithms
 * 6) Limit Question
 * 7) Using only the numbers 1,2,4,8 and do any operation (+*-  ) to them except for powers to make 27 ? YOU MAY ONLY USE EACH NUMBER ONCE!

= September 24 = Reference_desk/Archives/Mathematics/2008 September 24


 * 1) Beta Distribution Selection
 * 2) The 1-D Wave Equation (d'Alembert)
 * 3) Graph theory question-- order of magnitude of possible set-of-visited-points....
 * 4) Integration by substitution
 * 5) re-encrypting an encrypted file

= September 25 = Reference_desk/Archives/Mathematics/2008 September 25


 * 1) MATH RIDDLE THAT I'VE BEEN TRYING TO FIGURE OUT FOREVER
 * 2) Integration in Matlab
 * 3) 8,101,265,822,784

= September 26 = Reference_desk/Archives/Mathematics/2008 September 26


 * 1) Correlation Coefficients
 * 2) square feet

= September 27 = Reference_desk/Archives/Mathematics/2008 September 27


 * 1) Monochromatic triangles in a graph
 * 2) Integration Question

= September 28 = Reference_desk/Archives/Mathematics/2008 September 28


 * 1) How to calculate maximum volume of a box made with a 7x9 inch paper.
 * 2) Using the Fundamental Theorem of Calculus
 * 3) Differentiation of sin(ax - b) with respect to x.

= September 29 = Reference_desk/Archives/Mathematics/2008 September 29


 * 1) Is this true?

= September 30 = Reference_desk/Archives/Mathematics/2008 September 30


 * 1) calculating thickness of plated metal